James f



J. F. SEVERANCE.

Stovepipe Thimbie.

No; 55,210. 4 Patented May 29, 1866.

Uivrrso STATES PATENT OFFICE.

JAMES F. SEVERANOE, OF EAST BRIDGE WATER, MASSACHUSETTS, ASSIGNOR TO HIMSELF, ELEAZER G. BENNETT, AND OLIVER H.

WADE, OF SAME PLACE.

STOVE-PIPE THIMBLE.

Specification forming part of Letters Patent bio-55,2110, dated May 29, 1866.

To all whom it may concern:

Be it known that I, JAMES F. SEVERANCE, of East Bridgewater, in the county of Plymouth and State of hflassachusetts, have invented an Improved Stove-Pipe Thimble; and I dohereby declare the same to be fully described in the following specification and represented in the accompanying drawin s, of which- Figure 1 is a front elevation. Fig. 2 is a side view; Fig. 3, a vertical and transverse section of it.

In the said drawings, A denotes a circular plate applied to one end of a-tube, B, and provide with an elongated opening, a, arranged in it. ()n the front face of the plate A are two slides 0 (J, each of which is constructed with a recess, I) c d, which in form is the segment of a circle, its are being intended to tit to a stove-pipe when placed in the opening a and between the slides U U, and such slides are closed against the pipe. The form of the opening a is particularly exhibited in Fig. 4, which is a front view of the plate A without its slides O C. These slides are supported by and between two parallel ledges or guides, d d, projecting from the outer face of the plate A. Furthermore, there is a slot, 6, made through each slide 0 and parallel to one of the ledges d d. 'This slot is to receive a setscrew, j, which goes through it and is screwed into the plate A, and so that the head of the screw may abut against the slide.

There is placed within the tube Ba revoluble damper, I), provided with a lug,h, to which A a wire, 'i, projecting from a rack, E, is hooked. The rack goes through and slides freely in an orifice, It, made in the plate A. The notches ot' the rack enable the damper either to be adjusted at such an inclination as may be desirable or to be wholly closed.

A circular cover or cap, F, is applied to the plate A by means of a clamp screw, 1, which goes through an ear, m, projecting from the cap. This screw screws into the plate A. The ooveror cap is to be capable of being turned on the screw, so as to either partially or wholly close the opening between the two slides O 0 when. they are nearest to each other.

The purpose of the slides O 0, made with the curved recessesb cd, is to enable the opening between such slides to be adjusted to a stove pipe of any ordinary size, which pipe, on being flattened a little where it is to enter the opening, may be reduced in section to the proper shape of the opening made between the slides when forced close up to the pipe. After the slides and pipe may have been perfectly fitted together, the set-screws of the slides may be screwed up so as to clamp the slides in their positions.

By having the damper in the pipe-thimble I not only save the necessity of putting it in the stove-pipe, but I can employ it when the pipe is not in the thimble as a'means of regulating the ventilation of the apartment through the thimble. So when the cover is turned up into its highest position the slides (J 0 maybe moved more or less apart, so as with the cover to form crescent shaped openings for the air to pass through into the chimney, whether for the purpose of ventilating an apartment or for varying the draft of the stove or tlue.

I do not claim a series of rings applied to a pipe thimble for the purpose of varying the opening forthe reception of a pipe.

I claim 1. The arrangement and application of two or any other suitable number of adjustable slides, O (J, made substantially as set forth, or their equivalent, with the pipe-t-hiinble, composed of the plate A and the tube B.

2. The combination and arrangement of the cover F with the pipe-thimble and its adjustable slides U 0, applied to it in manner and so as to operate substantially as specified.

3. The combination and arraiw'ementot' the damper with the pipe-thimble and the adjustable slides thereof.

4. The combination of the damper, the pipethimble, the adjustable slides with the cover, the whole being arranged substantially as specified.

JAMES F. SEVERANOE. 

